->
-> Which gives you the details of the system from which the message
-> originates.

     ...but how do I deduce that the IP address is a mailer that
shouldn't be contacted?  ...especially when new Alaskan board like
JumpStart and PolarBBS are springing up?  Most of the BBSes running
WildCat! and Synchronet do not have FidoNET nodelist lookup capability
(and those that do do not normally list flags, and to be compliant with
modem dialers, public Telnet FidoNET systems have to use the 'PVT'
private flag, which used to be used for private systems...).  Your
average 'Joe User' is just going to see a Telnet address in the message
footer and try it, most likely....

--- ViaMAIL!/WC v1.60d